"""
Case Type   : 多节点写入
Case Name   : 备机在事务中在事务中执行调用函数
Create At   : 2023/1/9
Owner       : @li-xin12345
Description :
    1.修改enable_remote_execute参数值为on
    2.创建有ddl sql的函数
    3.备机在事务中执行调用函数
    4.创建只有dml sql的函数
    5.创建表，并且在备机事务中执行调用函数
    6.备机查看日志打印
    7.环境清理，恢复参数
Expect      :
    1.修改成功
    2.创建成功
    3.执行失败，不支持事务中的ddl
    4.创建成功
    5.执行成功
    6.日志记录建立连接、转发给主机、接受执行结果等libpqsw信息
    7.环境清理成功，恢复参数成功
History     :
    Modified by @li-xin12345 2023/3/15:研发代码变更，libpqsw日志打印增加线程号，优化断言以适配新代码
    Modified by @li-xin12345 2023/4/3:延长等待时间，等待备机接收主机返回的结果
    Modified by @kyeleze 2023/7/5:研发代码变更，日志打印信息更改，优化断言以适配新代码
    Modified by @kyeleze 2023/7/25:研发代码变更，优用例适配新代码
"""
import os
import time
import unittest
from yat.test import Node
from yat.test import macro
from testcase.utils.Logger import Logger
from testcase.utils.Common import Common
from testcase.utils.CommonSH import CommonSH
from testcase.utils.Constant import Constant

PrimarySh = CommonSH('PrimaryDbUser')


@unittest.skipIf(1 == PrimarySh.get_node_num(),
                 'Single node, and subsequent codes are not executed.')
class MultiNodeWrite(unittest.TestCase):
    def setUp(self):
        self.logger = Logger()
        self.logger.info(f"-----{os.path.basename(__file__)} start-----")
        self.standby_node = Node('Standby1DbUser')
        self.standby_sh = CommonSH('Standby1DbUser')
        self.constant = Constant()
        self.common = Common('Standby1DbUser')
        self.table_name = 't_multi_node_write_0032'
        self.function_name_1 = 'func_multi_node_write_0032_01'
        self.function_name_2 = 'func_multi_node_write_0032_02'
        self.new_log_path = os.path.join(macro.PG_LOG_PATH,
                                         'pg_log_multi_node_write_case0032')
        self.enable_remote_execute = 'enable_remote_execute'
        self.log_statement = 'log_statement'
        self.log_directory = 'log_directory'
        self.remote_execute_default = self.common.show_param(
            self.enable_remote_execute)
        self.log_statement_default = self.common.show_param(self.log_statement)
        self.log_dir_default = self.common.show_param(self.log_directory)
        shell_cmd = f"rm -rf {self.new_log_path}"
        self.logger.info(shell_cmd)
        shell_msg = self.common.get_sh_result(self.standby_node, shell_cmd)
        self.assertEquals('', shell_msg, '删除目录失败')

    def test_multi_node_write(self):
        step1 = "-----step1:修改enable_remote_execute参数值为on;expect:修改成功-----"
        self.logger.info(step1)
        result = self.standby_sh.execute_gsguc(
            'set', self.constant.GSGUC_SUCCESS_MSG,
            f'{self.enable_remote_execute}=on')
        self.assertTrue(result, '执行失败' + step1)
        restart_res = self.standby_sh.restart_db_cluster()
        self.assertTrue(restart_res, '执行失败' + step1)
        show_remote_execute = self.common.show_param(self.enable_remote_execute)
        self.assertEquals(show_remote_execute, 'on', '执行失败' + step1)
        result = self.standby_sh.execute_gsguc('reload',
                                               self.constant.GSGUC_SUCCESS_MSG,
                                               f'{self.log_statement}=all')
        self.assertTrue(result, '执行失败' + step1)
        result = self.standby_sh.execute_gsguc(
            'reload', self.constant.GSGUC_SUCCESS_MSG,
            f'{self.log_directory}=\'{self.new_log_path}\'', single=True)
        self.assertTrue(result, '执行失败' + step1)
        show_log_statement = self.common.show_param(self.log_statement)
        self.assertEquals(show_log_statement, 'all', '执行失败' + step1)
        show_log_directory = self.common.show_param(self.log_directory)
        self.assertEquals(show_log_directory, self.new_log_path, '执行失败' + step1)

        step2 = "-----step2:创建函数;expect:创建成功-----"
        self.logger.info(step2)
        ddl_cmd = f'''create or replace function {self.function_name_1}
            (tb_name varchar) return varchar is 
            begin 
                execute immediate 'drop table if exists  ' || tb_name || ';';
                execute immediate 'create table  '|| tb_name || 
                '(id int, name varchar(20));';
                end;'''
        create_msg = self.standby_sh.execut_db_sql(ddl_cmd)
        self.logger.info(create_msg)
        self.assertIn(self.constant.CREATE_FUNCTION_SUCCESS_MSG,
                      create_msg, '执行失败' + step2)
        time.sleep(2)

        step3 = "-----step3:备机在事务中执行调用函数;expect:执行失败-----"
        self.logger.info(step3)
        sql_cmd = f'''start transaction;
                    call {self.function_name_1}('{self.table_name}');
                    end;'''
        sql_msg = self.standby_sh.execut_db_sql(sql_cmd)
        self.logger.info(sql_msg)
        self.assertIn(self.constant.START_TRANSACTION_SUCCESS_MSG,
                      sql_msg, '执行失败' + step3)
        self.assertIn(self.function_name_1, sql_msg, '执行失败' + step3)
        self.assertIn("ERROR", sql_msg, '执行失败' + step3)

        step4 = '-----stpe4:创建只有dml sql的函数;expect:创建成功----'
        self.logger.info(step4)
        dml_cmd = f'''create or replace function {self.function_name_2}
            (tb_name varchar) return varchar is 
            begin
                execute immediate 'insert into ' || tb_name ||
                ' values (generate_series(1,10), ''test'');';
                execute immediate 'update ' || tb_name ||
                ' set name=''software'' where id = 3;';
                execute immediate 'delete from ' || tb_name || ' where id = 5;';
                return tb_name;
                end;'''
        create_msg = self.standby_sh.execut_db_sql(dml_cmd)
        self.logger.info(create_msg)
        self.assertIn(self.constant.CREATE_FUNCTION_SUCCESS_MSG,
                      create_msg, '执行失败' + step4)
        time.sleep(2)

        step5 = "-----step5:备机在事务中在事务中执行调用函数;expect:执行成功-----"
        self.logger.info(step5)
        sql_cmd = f'''drop table if exists {self.table_name};
            create table {self.table_name} (id int, name varchar(20));
            start transaction;
            call {self.function_name_2}('{self.table_name}');
            end;
            select pg_sleep(30);
            select * from {self.table_name};'''
        sql_msg = self.standby_sh.execut_db_sql(sql_cmd)
        self.logger.info(sql_msg)
        self.assertIn(self.constant.CREATE_TABLE_SUCCESS,
                      sql_msg, '执行失败' + step5)
        self.assertIn(self.constant.START_TRANSACTION_SUCCESS_MSG,
                      sql_msg, '执行失败' + step5)
        self.assertIn(self.function_name_2, sql_msg, '执行失败' + step5)
        self.assertIn(self.constant.COMMIT_SUCCESS_MSG, sql_msg,
                      '执行失败' + step5)
        self.assertNotIn("ERROR", sql_msg, '执行失败' + step5)
        self.assertIn("  1 | test\n  2 | test\n  4 | test\n  6 | test\n  "
                      "7 | test\n  8 | test\n  9 | test\n 10 | test\n  "
                      "3 | software", sql_msg, '执行失败' + step5)
        time.sleep(2)

        step6 = "-----step6:备机查看日志打印;expect:日志记录建立连接、" \
                "转发给主机、接受执行结果等libpqsw信息-----"
        self.logger.info(step6)
        shell_cmd = f"ls -t {self.new_log_path}"
        self.logger.info(shell_cmd)
        shell_msg = self.common.get_sh_result(self.standby_node, shell_cmd)
        logfile = os.path.join(self.new_log_path, shell_msg.split()[-1])
        self.logger.info(logfile)
        shell_cmd = f"cat {logfile}"
        self.logger.info(shell_cmd)
        shell_msg = self.common.get_sh_result(self.standby_node, shell_cmd)
        self.logger.info(shell_msg)
        self.assertIn('transaction status change',
                      shell_msg, '执行失败:' + step6)
        self.assertIn('Connecting to remote server',
                      shell_msg, '执行失败:' + step6)
        self.assertIn(f'LOG:  libpqsw', shell_msg, '执行失败:' + step6)

    def tearDown(self):
        step7 = "-----step7:环境清理，恢复参数;expect:环境清理成功，恢复参数成功-----"
        self.logger.info(step7)
        drop_cmd = f"drop function if exists {self.function_name_1};" \
                   f"drop function if exists {self.function_name_2};" \
                   f"drop table if exists {self.table_name};"
        drop_msg = self.standby_sh.execut_db_sql(drop_cmd)
        self.logger.info(drop_msg)
        result1 = self.standby_sh.execute_gsguc(
            'set', self.constant.GSGUC_SUCCESS_MSG,
            f'{self.enable_remote_execute}={self.remote_execute_default}')
        restart_res = self.standby_sh.restart_db_cluster()
        show_remote_execute = self.common.show_param(self.enable_remote_execute)
        result2 = self.standby_sh.execute_gsguc(
            'reload', self.constant.GSGUC_SUCCESS_MSG,
            f'{self.log_statement}={self.log_statement_default}')
        result3 = self.standby_sh.execute_gsguc(
            'reload', self.constant.GSGUC_SUCCESS_MSG,
            f'{self.log_directory}=\'{self.log_dir_default}\'', single=True)
        show_log_statement = self.common.show_param(self.log_statement)
        show_log_directory = self.common.show_param(self.log_directory)
        self.logger.info("-----断言teardown-----")
        self.assertIn(self.constant.DROP_FUNCTION_SUCCESS_MSG,
                      drop_msg, '执行失败' + step7)
        self.assertIn(self.constant.TABLE_DROP_SUCCESS,
                      drop_msg, '执行失败' + step7)
        self.assertTrue(result1, '执行失败' + step7)
        self.assertTrue(restart_res, '执行失败' + step7)
        self.assertEquals(show_remote_execute, self.remote_execute_default,
                          '执行失败' + step7)
        self.assertTrue(result2, '执行失败' + step7)
        self.assertTrue(result3, '执行失败' + step7)
        self.assertEquals(show_log_statement, self.log_statement_default,
                          '执行失败' + step7)
        self.assertEquals(show_log_directory, self.log_dir_default,
                          '执行失败' + step7)
        self.logger.info(f"-----{os.path.basename(__file__)} end-----")

